If the following relative URL is located in that body part:
<;section=1.4>
this could result in the following client commands:
C: A004 UID FETCH 20 (BODY.PEEK[1.2.MIME]
^
BODY.PEEK[1.MIME]
BODY.PEEK[HEADER.FIELDS (Content-Location)])

It should say:

If the following relative URL is located in that body part:
<;section=1.4>
this could result in the following client commands:
C: A004 UID FETCH 20 (BODY.PEEK[1.4.MIME]
^
BODY.PEEK[1.MIME]
BODY.PEEK[HEADER.FIELDS (Content-Location)])